Miosis

Miosis
Other namesMyosis, pinpoint pupil
Miosis from bright light pointed directly at the eye. Pupil measured 2.3 mm in diameter
Pronunciation
SpecialtyOphthalmology Edit this on Wikidata
SymptomsConstricted pupils

Miosis, or myosis (from Ancient Greek μύειν (múein) 'to close the eyes'), is excessive constriction of the pupil.[1][2][3][4] The opposite condition, mydriasis, is the dilation of the pupil. Anisocoria is the condition of one pupil being more dilated than the other.

  1. ^ Farlex medical dictionary citing:
  2. ^ Seidel HM, Ball JW, Dains JE, Benedict GW (2006-03-29). Mosby's Guide to Physical Examination. Mosby. ISBN 978-0-323-03573-6.
  3. ^ Farlex medical dictionary citing: Millodot: Dictionary of Optometry and Visual Science, 7th ed.
  4. ^ Farlex medical dictionary citing: Mosby's Medical Dictionary, 8th ed.

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